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MC34270 데이터 시트보기 (PDF) - Motorola => Freescale
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MC34270
Liquid Crystal Display and Backlight Integrated Controller
Motorola => Freescale
MC34270 Datasheet PDF : 12 Pages
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MC34270 MC34271
Figure 13. MC34270 Incandescent Backlight Configuration
Vin
5.0 V to 16 V
169 k
Vref
LCD
Contrast
DAC
0.1
µ
F
MC34270
SW1
32
DS1
1
EN1
ÎÎ
26
VDD
8 Drv1
÷
2
31 Sync
30 RT
Vref
27 1.25 V
2
Ref1
3
FB1
4 Comp1
SS1
5
Circuit #1 Bias Supply
En
S
Q
R
D1
7
S1 6
÷
N
ELD
9
VDD
11
OSC
Mode
10
S
Q
R
En
ÎÎ
VD
ÎÎ
D
VDD2
Circuit #2
Bias Supply
D2
18
S2 19
DS1
1
Ref2
23
22
FB2
Comp2
21
SS2
20
DS2
24
VB
17
V0
16
V1
15
25 EN2
VA
28
BIAS
V2
14
VDD2
V3
13
Gnd
29
VDD2
V4
12
6.0 V to 30 V
V0
V1
V2
V3
LCD
Display
V4
MOTOROLA ANALOG IC DEVICE DATA
9
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